Avaya 9601, User Manual, Page: 107 / 178

7-22
MDF/lDF DESIGN: DEFINlTY GENERIC 2 WITH UNIVERSAL MODULES
Figure 7-13. Zone Arrangement of Type-2 Frame — Front View, Zone
2
In addition to the preceding guidelines, observe these rules when designing zones:
Mount the hardware on frames. For 1-zone installations, wall-mounted frames may be used. For 2-
zone installations, double-sided, self-supporting frames must be used.
Divide the distribution cables (in 100 pair increments) as equally between zones as possible. For
example, assume that an installation has two zones and a 300-pair distribution cable. You would
terminate 100 pairs at one zone and 200 pairs at the other.
Do not add extra cable pairs to a distribution cable to achieve an equal number of terminations at all
zones. That is, in the preceding rule you would not add 100 pairs to the 300-pair cable in order to
terminate 200 pairs at both zones.
Do not spread the equipment ports at the MDF, keep them in the same area.
When you use zones in the equipment room, the proper cross-connections at the IDF are crucial.
Figure 7-14, Closet Cross-Connects Using Type-1 Frames, illustrates IDF cross-connections of
distribution cables originating from two different zones in the equipment room. Make sure that you
label the IDF cross-connections as follows: